28817144 has 16 divisors (see below), whose sum is σ = 54167400. Its totient is φ = 14372512.

The previous prime is 28817101. The next prime is 28817177. The reversal of 28817144 is 44171882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947 + ... + 7650.

Almost surely, 2^28817144 is an apocalyptic number.

It is an amenable number.

28817144 is a deficient number, since it is larger than the sum of its proper divisors (25350256).

28817144 is a wasteful number, since it uses less digits than its factorization.

28817144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9022 (or 9018 counting only the distinct ones).

The product of its digits is 14336, while the sum is 35.

The square root of 28817144 is about 5368.1602062532. The cubic root of 28817144 is about 306.5845831562.

The spelling of 28817144 in words is "twenty-eight million, eight hundred seventeen thousand, one hundred forty-four".